www.htk.org
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:41:1d:df:b6:eb:fb:9e:17:85:e8:68:55:40:73:4c:5e:06 was issued on by Let's Encrypt.
This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.htk.org
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:41:1d:df:b6:eb:fb:9e:17:85:e8:68:55:40:73:4c:5e:06Serial Number (int): 283494920849313993806151806709389440343558
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 4a:5b:78:ec:b4:33:f9:63:b2:9f:e5:a8:c5:0c:4d:ae:f4:fd:85:33
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): fb:99:d9:cf:b1:a0:60:33:d6:91:3b:a0:55:b8:47:18:45:fe:f2:b3
Fingerprint (sha256): e7:e8:e2:26:5c:2e:36:f5:9d:27:a2:e7:0e:36:5a:09:f8:67:5f:8a:09:0a:dc:0c:3c:3d:e0:7e:18:41:cf:bc
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.htk.org
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.htk.org
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
www.htk.org
Other certificates including the domain name htk.org
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.htk.org in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGTjCCBTagAwIBAgISA0Ed37br+54XhehoVUBzTF4GMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MjcxMzE4MzJaFw0x OTA4MjUxMzE4MzJaMBYxFDASBgNVBAMTC3d3dy5odGsub3JnMIICIjANBgkqhkiG 9w0BAQEFAAOCAg8AMIICCgKCAgEAzQ+QJOjYbKfkO06mIMw6zQqzhGuo8C+Obmt3 agQnTaqCisj+irvDQHsgl5H2gO6uNcYvFzcfQte8POskbJJiQ8rKgxTXHM1vyesN ovSR68MpwjPsBrfCH9T+sTt0AIimxLMSz/weyLtD4j1F3iarpMdb/Ngg7WKbaoDm VA96Btp+4tsG2B2T+51tU4MIrxaEfaAYKUXPEw/DUopOk997f+7MfC/eIvgXCNQ6 4FEl9HaFydAT4wSyRQutVKjdY8azZ+XY4tIZJeS+HHTVCyc59/fCL2K+0wWvthxg bWx9o5s5JKY4EfIG8NkXtuiG2gmIcfnGN5Izm6adSJoLKmgvR2lgnRGvICCzLe/I iF7zjEYNf30wCvQKPM26WL5GHxJslagyFPKAOVfRnnDWabSh9Y/YEG3AAgaOQ26G lty6huuC6GQ4fxVbOjaMQYYC6wkFX2B7YON1ccczI7FW1Mkv+7kosTuYGc/lK35p HrW7JLOgD18ya0XNcntJawZcNTiCh47UiC6nGYE0HrswzVxwVjBGxfW5AVTh9Xml af19vrMyJQ6+6lqO+GTsaKc1yl++L8aXJTXCaNgkg9pZ+kO5bcVHw7vhvQBIGX6b mcDX7gENYvwREu/kAuqFH49I/cI2lTHYZTDlosBt2+uxLYNuVgj8/lRgbhe6ad+y u6rVOl8CAwEAAaOCAmAwggJcMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUSlt47LQz +WOyn+WoxQxNrvT9hTMwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzAWBgNVHREEDzANggt3d3cuaHRrLm9yZzBMBgNVHSAE RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2 AG9Tdqwx8DEZ2JkApFEV/3cVHBHZAsEAKQaNsgiaN9kTAAABavmoNhoAAAQDAEcw RQIhAOxtc4ZIjg1zK/J7BHpWiTuV6YapMxwvhHQjzMuAQj6CAiBDKI9fP46TZJPY aiPHS2F00QVXv21SOjiP7MwoHMCr7QB2ACk8UZZUyDlluqpQ/FgH1Ldvv1h6KXLc pMMM9OVFR/R4AAABavmoNgkAAAQDAEcwRQIhALRG6fp58O6Ou1qCUxq7WouV8QQL GuSF5twA1OknqVEZAiBT5gQqwkA81qiPuMrHxUPuvZ96dbIC8FHotwH20/ndtzAN BgkqhkiG9w0BAQsFAAOCAQEAc+GR/gSgtXNBWyKWQEILD83Uu7QOseVFaghF0+Q3 lZYgfXMPutpZqBaRs13ja8AQ3E/4O69LhdJMnWYsL+LiYhcU3o2E7zo94jVf2tw/ 8zzxhx6GUqBfPzJX7+ZGYfcQUkpWbNeJR6cNqSHQGRwbEsbBCdyAS/YGbL2ZuMzV srrY2t+a+lE1CbkiyrTBKqTRONPGJAoYaYR/oNWIZwFmA/zXOAHsIpaBgX73I72F T2azKkjbIPxHEHTqpijdJ1WBdpNNpoJqUlm3FbxuV5As3GbjLP3zdUnH54PGuVT5 5NFMDFS1Q3ISD0gbB81EWpUC6FBZzsH9CFDqIOutIkBo0A== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAzQ+QJOjYbKfkO06mIMw6 zQqzhGuo8C+Obmt3agQnTaqCisj+irvDQHsgl5H2gO6uNcYvFzcfQte8POskbJJi Q8rKgxTXHM1vyesNovSR68MpwjPsBrfCH9T+sTt0AIimxLMSz/weyLtD4j1F3iar pMdb/Ngg7WKbaoDmVA96Btp+4tsG2B2T+51tU4MIrxaEfaAYKUXPEw/DUopOk997 f+7MfC/eIvgXCNQ64FEl9HaFydAT4wSyRQutVKjdY8azZ+XY4tIZJeS+HHTVCyc5 9/fCL2K+0wWvthxgbWx9o5s5JKY4EfIG8NkXtuiG2gmIcfnGN5Izm6adSJoLKmgv R2lgnRGvICCzLe/IiF7zjEYNf30wCvQKPM26WL5GHxJslagyFPKAOVfRnnDWabSh 9Y/YEG3AAgaOQ26Glty6huuC6GQ4fxVbOjaMQYYC6wkFX2B7YON1ccczI7FW1Mkv +7kosTuYGc/lK35pHrW7JLOgD18ya0XNcntJawZcNTiCh47UiC6nGYE0HrswzVxw VjBGxfW5AVTh9Xmlaf19vrMyJQ6+6lqO+GTsaKc1yl++L8aXJTXCaNgkg9pZ+kO5 bcVHw7vhvQBIGX6bmcDX7gENYvwREu/kAuqFH49I/cI2lTHYZTDlosBt2+uxLYNu Vgj8/lRgbhe6ad+yu6rVOl8CAwEAAQ== -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 283494920849313993806151806709389440343558 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-27 13:18:32 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-25 13:18:32 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.htk.org' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 836575048625547930475510585903726531048038030285775495455333910016504238465237445679828014018854137306472546266998955651109826831905940976456569151305985720097856088695261258365236405581219920254979224144288152462666257929074951731443542983829502574368425202258625680294340729773741465399054089718303481624198653515036137810162392693745589388950429169322939588076649193049018096574877156894442373352460484572206596181914349042588968479324195892727321171276843786117467028932838360719818068233404162029430296724536732149394762176482162487375341888789881591707136943136120656161774235263902383488456937062000785222705493258601989665692459067408172671913530504380192737509540865113843402164516532891806906206857358007459834367983915295787149546278822840342267655129466799835652548016417688148039566445271160309656990584191295369036353858209999112859291459152488641705376780397421508153505542684782165857762894735380200974720768171142603170340231910398333588907756183128915053184445878603836535686218370647254018815515694485823838413546774725487286490440204557468664149061232582751434228923724613812777391920365766104067530996215844420487073357409842402264243267002275209457631268659841372626198464984635200207221410597998183024923327071 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 4a5b78ecb433f963b29fe5a8c50c4daef4fd8533 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (15 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.htk.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016af9a8361a0000040300473045022100ec6d7386488e0d732bf27b047a56893b95e986a9331c2f847423cccb80423e82022043288f5f3f8e936493d86a23c74b6174d10557bf6d523a388feccc281cc0abed007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016af9a836090000040300473045022100b446e9fa79f0ee8ebb5a82531abb5a8b95f1040b1ae485e6dc00d4e927a95119022053e6042ac2403cd6a88fb8cac7c543eebd9f7a75b202f051e8b701f6d3f9ddb7 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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